25139740

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 54526752

約数和(自身を除く): 29387012

約数列:

[1, 2, 4, 5, 10, 20, 67, 73, 134, 146, 257, 268, 292, 335, 365, 514, 670, 730, 1028, 1285, 1340, 1460, 2570, 4891, 5140, 9782, 17219, 18761, 19564, 24455, 34438, 37522, 48910, 68876, 75044, 86095, 93805, 97820, 172190, 187610, 344380, 375220, 1256987, 2513974, 5027948, 6284935, 12569870, 25139740]

約数ペア:

[(1, 25139740), (2, 12569870), (4, 6284935), (5, 5027948), (10, 2513974), (20, 1256987), (67, 375220), (73, 344380), (134, 187610), (146, 172190), (257, 97820), (268, 93805), (292, 86095), (335, 75044), (365, 68876), (514, 48910), (670, 37522), (730, 34438), (1028, 24455), (1285, 19564), (1340, 18761), (1460, 17219), (2570, 9782), (4891, 5140)]